What is the SI unit of momentu(5 do0qgehmo6 m?

  When a cannon fires a cannonball, the cannon will recrxs u:l3sqh0 r(pa sx4qfupmu3 y 53b2y*3um6 oil backward because the

  A freight car moves along 0 k( ln8zcct.z ;(iiodrl9+fda frictionless level railroad track at constant speed. The car is open on top. A large load of coal is suddenly dumpe+zfdcizk0i (8 r(nco.;t dll9d into the car. What happens to the velocity of the car?

  A child falls sideways off a sled while sled ss (yf6vbaq6ccrp9 i.nyw57.ding on frictionless ice. What happens to vyib66r 5 w .cs9pny (.qsc7fathe velocity of the sled?

  A rubber ball and a lump of putty have equal mass. They are thrown with equal,)rmv9;vzru v speed against a wall. The ball bounces back with nearly the same speed with which it hit. The putty sticks to the wall. Which objects experiences the greater mv) rv, ;z9rmuvomentum change?

  A sailboat of mass m is moving with a momentum5(wek+ i fq( juh)stp: p. How would you represent its kinetic energy in terms of these twq5+jkf ):ew ptish (u(o quantities?

  If you pitch a baseball with twice the kine6 uh)eqqf430wan vq(e tic energy you gave it in the previous pitch, the magnitude of i )u qvn faq(3406wqheets momentum is

State Newton's second law in terms of momm2 *ppwwh:te9zr w3m-(8r kn qentum.

State the law of conservation of0b60j/ extap h momentum.

  The area under the curve on a Force versus +: y1 sew7lematime (F vs. t) graph represents

  Which of the following is an accurate sth t/ 7 zk;swixm-wpnr30o*c y/atement?

  A small car meshes with a large truck in a head-on collision. Which of the fo9;+ h3zasagzk llowing statements concerning th z;zh9kaga+s3 e magnitude of the average collision force is correct?

  Two equal mass balls (one red and the other blue) are dropped from/:1sj ns qb8hq the same height, and rebound off the floor. The red ball rebounds to a higher position. Which ball is subjected to the greater magnitude of impulse durinsjb q :/hsn81qg its collision with the floor?

  A Ping-Pong ball moving east at a speed of 4 m/s, 4q5rnbiq0- 7 xb:qbhtv1ep-(y vlff*collides with a stationary bowling ballf 5i7byb(1xtq-0*lqqf 4v-phev:b n r. The Ping-Pong ball bounces back to the west, and the bowling ball moves very slowly to the east. Which object experiences the greater magnitude impulse during the collision?

  Two objects collide and bounce off each other. Lineez1u5,q1jjino ;ah l-ar momentum

  A 3.0-kg object moves to the right at 4.0 m/s. It collides head-on with1rw gkse3o( p a)1h4ow a 6.0-kg object moving to the left at 2.0 m/s. Which statement e p 31w1)rksowa 4(ghois correct?

  A 100-kg football linebacker moving at 2.0-l+ klw t.7sf8um9j kv m/s tackles head-on an 80-kg halfback rwuvs 9 .km-kjtl87f +lunning
3.1 m/s. Neglecting the effects due to digging in of cleats,

  In an elastic collision, if the momentum is conserved, then which of the foll 0hkq*f0ii*gw,7.)uqnck ba;ivh5 av owing st **;0i qfv gk)cnubaa0,hhv7k iq.w5iatements is true about kinetic energy?

  When is kinetic energ;:hwffwf)mu ; y conserved?

  In a game of pool, the white cue ball hits the #5 ball and stops, while )1zbsszns ohoz5h(ep ;0e2 d9 the #5 ball moves away with the same vebzhosehn(1zpdos)5 0s; ez29 locity as the cue ball had originally. The type of collision is

  When a light beach ball rolling with a speed of 6.0 m/s collides with a hea*1p7v( q gmk;okg5jhnvy exercise ball at rest, the beach gmq57h*kj1(;ok ngp v ball's speed after the collision will be, approximately,

  A golf ball traveling 3.0 m/s to the rigrcioa9rx, ix m/9h8 2,urey;yht collides in a head-on collision with a stationary bowling ball in a friction-free environment. If the collision is almost perfectlyrx/r;ii xch8a,9eoy2u y ,r9m elastic, the speed of the golf ball immediately after the collision is

  A rubber ball with a speed/c,yx nf uxesly x,qa;x v+7(/ of 5.0 m/s collides head-on elastically with an identical ball at rest. What is the speed of the initially stopped bq7ux/a xv,y(esn /l ,cx+yx ;fall after the collision?

  A very heavy object moving with speed v collides he(n uw/+d9f c0 g(uvoisad-on with a very light object at rest.s9n0( i o+wuvf/cgd(u The collision is elastic, and there is no friction. The heavy object barely slows down. What is the speed of the light object after the collision?

  A very light object moving with speed v collides 2)vy bhy;rytn,6z- jy head-on with a very heavy object at rest, in a frictionless environment. The collision is almost perfectly elastic. The speed of thvh,r 6tzj nyb-2yyy );e heavy object after the collision is

  A red ball with a velocity of +3.0 m/s coll;pzmk3mdj25 c mxch9l /n2c. 2rq7ukwides head-on with a yellow ball of equal5rchk7c2/w mu q9 clj3xd2z. mnp2mk; mass moving with a velocity of -2.0 m/s. What is the velocity of the yellow ball after the collision?

  A very heavy object moving withhr;v 16y/l osg velocity v collides head-on with a very light object moving with velocity -v. The collision is elastic, and there is no friction. The6s;gh/lo r1yv heavy object barely slows down. What is the speed of the light object after the collision?

  In an inelastic collision, if the momentum is conserved, then which of pohoi /8tb/hsio a 6+ m83kr7k,w6mem the following statements is true about ki/rsm+ob 7ah6 63m8/ t8kei poiwmk, ohnetic energy?

  Two objects collide and stick together. Kint7l / qnd7(gduetic energy

  A 3.0-kg object moves to the right at 4.0 m/s. It collides in a perfecw n,8bo w-ntap+z 8-qknme14 ttly inelastic collis,pn n-nzqb-t8 mkew 8wat1 o4+ion with a
6.1 kg object moving to the left at 2.0 m/s. What is the total kinetic energy after the collision?

  A small object collides with a large object and sticks. Which object ; zx4jcmm fn q;k- j-l6) wqx2g/thuu)experiences the larger magnitudzuk))h/q2lu; g4mxj;cxw t6q-fjnm -e of momentum change?

  In a game of pool, the white cue ball hits the #9 ball and is deflected at msk nl.2/l+a cvk.d)pa $35^{\circ}$ angle to the original line of motion. What is the angle of deflection below the original line of motion for the #9 ball?

  Consider two unequal masses, M and m. Whinw 3ah yt(:gbkhkt 1;(ch of the following statements is false?a(b yh (g1wth :;knkt3

  Which of the following9t . )gengsad/ 0cy-kt4eqc t7 is a false statement?

  Tightrope walkers walk with a long fle (q5h29 akgsyxju9. rkxible rod in order to

  A plane, flying horizontallfl./de p y9em2y, releases a bomb, which explodes before hitting the ground. Neglecting air resistance, the 2./lpm9 yfedecenter of mass of the bomb fragments, just after the explosion

  Two cars collide head-on on a level fricti3ckt*it 0d 8dvq( -ymoon-free road. The collision was completely inei(k -ddtm co*v 03tyq8lastic and both cars quickly came to rest during the collision. What is true about the velocity of this system's center of mass?

State Newton's second law for a system of part.ba6a x0rdr(zicles.

  What is the momentum of a :qtq 1g lcp+z sj),beu6u(7 hz2000-kg truck traveling at 35 m/s?

  A 1200-kg ferryboat is moving south at 20 m/s. ;c)fk *8bibxjmfko xckyn *hpq1u:yfm 2 /*4,What is the magnitude of its momenhkbc4jkix ,*pby21:*u* f ;8xkoynmc /qfmf)tum?

  A ball of mass 0.10 kg is drs djn/g. mls*bksf:; 0opped from a height of 12 m. Its momentum when it string: l*s ;js0ksd m.f/bkes the ground is

  Two identical 1500-kg cars are moving perpendicular toabc 9h5a ;ka)tda j/prv97ri 7 each other. One moves with a speed of 25 m/s due north avj; k/a9b hp7 7ida)arcr 9at5nd the other moves at 15 m/s due east. What is the total momentum of the system?

  A handball of mass 0.10 kg, traveling horizontally at 3lz fuk7e3+h . nqx9669ef0yyr 7hczrd 0 m/s, strikes a wall and rebounds at 24 m/s. What is the change in the momentum of the9 f3dc76+ ur0xheekf7zlq.6y y 9zhnr ball?

  A 0.060-kg tennis bal 6gz:1i6qzd 4 tag4e4htjql3k l, initially moving at a speed of 12 m/s, is struck by a racket causing l3qtha6 44 1z j tgzdekq:4i6git to rebound in the opposite direction at a speed of 18 m/s. What is the change in momentum of the ball?

  A 50-kg pitching machine (excluding the baseb9v4*w:si2ya lcvz. uh xnp) 5qall) is placed on a frozen pond. The machine fires 9 2nphv * cx4wzy):iv.slqu5a a 0.40-kg baseball with a speed of 35 m/s in the horizontal direction. What is the recoil speed of the pitching machine? (Assume negligible friction.)

  A 70-kg astronaut is space-walking outside the space px nqp z.3xx 43o)t5:hypxp-1 uciro7capsule and is stationary when the tether line breaks. As a means of returning to the capsule he throws his 2.0-kg space hammer at a speed of 14 m/s away from the capsule. At what speed i57 31x)zxpuxt4y.px onpr ohq cp:-3does the astronaut move toward the capsule?

  A small object with momentum 5.0 kgm/s approaches head-on a large object at ifv jq*i6f 3*w ),h57ge rm1zjfup sx4rest. The small object bounces straight back with a momentum of magnitude 4.0 kgm/s. What is the magnitude of the large object's momentum cz vgs1 fp5e 6*7xiui)fr3j4 jmfw *q,hhange?

  You (50-kg mass) skate on ice at 4.0 m/s to greet your frgi -nq5v j9jq7xei/n.iend (40-kg mass), who is standing still, with open arms. As y95j njxiq7g-e i.n/vq ou collide, while holding each other, with what speed do you both move off together?

  A car of mass 1000 kg moves to the right along a level, straxzfw)o2.q :n .; geaxiight road at a speed of 6.0 m/s. It collides directly with a stopped motorcycle of mass 200 kg. What is the total momentum after the co x:xoeigwfnz) a ;2..qllision?

  A 1000-kg car traveling at 25 m/s runs into the rear of ai 17tm 0 opukqb be)/i o*6-a*daok6di stopped car that has a mass of 1500 kg and they stick together. What is the speed of the cars bka*do o)b6e/6 ia-t7kui 0* mio pd1qafter the collision?

  A railroad freight car, mass 15,000 kg, is allowed to coast yf-njh skv.;o9 zp.byy hnunt3u:u:5k:z 9 3w along a level track at a speed of 2.0 m/s. It collides and couples with a 50,000-kg second car, initially at rest an bzutn:fy.:3njkh -physyu3k. w59 zn:vuo9 ;d with brakes released. What is the speed of the two cars after coupling?

  A railroad car, of mass 200 kg, rolls w *c jldyimvob48y wdaf )-139aith negligible friction on a horizontal track with a speed of 10 m/s. A 70-kg stunt man drops straight down a distance of 4.0 m, and lands in the car. How fast will the car be moving after)l3do* 8f4y-aa mdjw ibvcy 19 this happens?

  A 60-kg person walks x1irn h9fh pnva;2e01on a 100-kg log at the rate of 0.80 m/s (with respect to the log). With what speed does vap912nehr h ; fi1nx0the log move, with respect to the shore?

  A 4.0-N force acts for 3.0 s on an object. The force suddenly inrps(r u8gom cw)10mgw 0eg)7kcreases to 15 N and acts for one more second. What impulse was imparmreg )cpkwm0ou0r)8 s( w 7g1gted by these forces to the object?

  A constant 9.0-N net force acts for 2.0 s on a 6.0-kg object. What is the objg2z)imaowc6x n.*v v;0d* li c k5cu)wect)avv ;o *6m i l.wxzc*k25)cgni0uwdc's change of velocity?

  A 2000-kg car, traveling to the right at 30 m/s, collides witho7:8r by jqj5 oen(+*fpk,nga a brick wall and comes to rest in 0.20 s. What is the average 8k,b+jqnef ap jo5y:* g7(ronforce the car exerts on the wall?

  A 2.0-kg softball is pitched to you at 20 m/s. You hit the ball back along thek1ejbclf (l (n3vn,a ; same path, and at the same speed. If the bat was in cont aj 3v;blk, fcl(n(n1eact with the ball for 0.10 s, what is the magnitude of the average force the bat exerted?

  A 0.10-kg ball is dropped onto a table top. The speeds of the ball +6o eiu5yhj9kright before and right after hitting the table top are 5.0 m/s and 4.0 m/s, rek6 i+5e yhu9ojspectively. If the collision between the ball and the table top lasts 0.15 s, what is the magnitude of the average force exerted on the ball by the table top?

  A machine gun, of mass 35.0 kg, fires 50.;ht5co(csm jd :;q -pv0-gram bullets, with a muzzle velocity of 750 m/s, at the rate of 300 rounds per minute. What is the average force exerted on the machine gun mount? t5d;- :(c;jspvhomcq

  A fire hose is turned on the2ggdbu6/gbj;u; tp 384.:xpd mdd b9kys y3yv door of a burning building in order to knock the door down. This requires a force of 1000 N. If the hose delivers 40 kg per second, what is the minimum velocity of the stream needed.2bgsgy ; t3duv 4x9j d8pbukp d:m;y63b/ygd, assuming the water doesn't bounce back?

  Water runs out of a horizontal drainpipe at the rate ofo;j/bj.n / fsn 120 kg per minute. It falls 3.20 m to the ground. Assuming the water doesn't splash up, what average force does it n/.j/s; onjfb exert on the ground?

  A toy rocket, of mass 0.12 kg, achieves a velocity osnu b /ncpw44pg8)7 h1;cjqgsr(6r b if 40 m/s after 3.0 s, when fired straight up. What average thrust force dorgqscn(/sc b;7pw4864p) ij u n1b hgres the rocket engine exert?

  Two astronauts, of masses 60 kg and 80 kg, are initiallybwt+vc(u3)d 5f w oysoz05*jf at rest in outer space. They push each other apart.o0wo5v3z ywts b j)5d*fc(f +u What is their separation after the lighter astronaut has moved 12 m?

  A 3.0-kg object moves to the right with a speed of 2.0 m/s. It collides in a perqpni.cb2.:+a4h ubx vfectly elastic collision with a 6.0-kg object movi.4cb i+u:aqxh.bnp2v ng to the left at 1.0 m/s. What is the total kinetic energy after the collision?

  A 0.10-kg object with a velocity of 0.20 m/s in the +x direction makes a hi9*/tf:ln qygead-on elastic collision with a 0.15 kg object initially at rq/ ly g*:ntfi9est. What is the final velocity of the 0.10-kg object after collision?

  A 10.0-g bullet moving at 300 m/s is fired into a 1.00-kg block at rest. The 9uiptm54w rxh7w z9 ::mky :wibullet emerges (the bullet does not get embedded in the block)z 9y: i4k:5r7m wux:w9i ptwmh with half of its original speed. What is the velocity of the block right after the collision?

  A proton, of mass m, at rest, is struck head-on by s9ml2zu0(dzr an alpha-particle (which consrl9dzm0z(us 2ists of 2 protons and 2 neutrons) moving at speed v. If the collision is completely elastic, what speed will the alpha-particle have after the collision? (Assume the neutron's mass equals the proton's mass.)

  A 50-gram ball moving +10 m/s collides head-on with a st n*gbrfb e2*n)ationary ball of mass 100 g. The collision is elastic. What is the speed of ne)2*b* fnb rgeach ball immediately after the collision?

A ball of mass 400 g moving toward the east with a sp-7ezmkvr9: qdym4+7h 2q kd0kgr mp)beed of 3.70 m/s collides head-on with a 200 g ball sitting at rest. The coll7 rz q:k e972 0pdb+q4dgk)vmy-kmrhmision is perfectly elastic.
(a) Determine the velocity of the first ball after the collision.
(b) Determine the velocity of the second ball after the collision.
(c) Is kinetic energy conserved in this collision?

  A 2.0-kg mass moves with a speed of 5.0 m/s. It collides head-on with a 3.0 krc 9f9py3 hr9xg mass at rest. If the collision is perfectly inelastic, what is the speed of tphyx r99 c9fr3he masses after the collision?

  A 2.0-kg mass moving to the east a)h q8mv/*bvkqdxb 7e5t a speed of 4.0 m/s collides head-on in a perfectly inelastic collisiov /b5h )xv*ekd mqbq87n with a stationary 2.0-kg mass. How much kinetic energy is lost during this collision?

  A car of mass m, traveling with a velocity v, strikes a parked station wl+5s0v f ga ;sow6-vcox,wp(xagon, who's mass is 2m. The bumpers lock together in this head-on inelastic collision. 6w,-ol+w 0vx;(sf ovg5paxc s What fraction of the initial kinetic energy is lost in this collision?

A 15-g bullet travelinggg nm,oj1+s5 l 213 m/s in a vertical direction buries itself in a 2.4-kg block of wood a rest directly above it. As a result, the bullet/block combination moves vertically upwag,j ng 51+mlosrd.
(a) Determine the velocity of the bullet/block combination at the point of impact.
(b) Determine the maximum height reached by the bullet/block combination.
(c) Is kinetic energy conserved in this collision?

  A 1500-kg car traveling at 90.0 km/h east collfe s cd+z39uk5ides with a 3000-kg car traveling at 60.0 km/h south. The two cars stick together after the collision. (See Fig. 7-1.) What is the speed of the +kdz95ucfe s3cars after collision?

  A 1500-kg car traveling at 90.0 krfh 8 z*zg1ccpq: lb2)en 6jm,m/h east collides with a 3000-kg car traveling at 60.0 km/h south. The two cars stick togetq: cnh g,lep 1br)26 8jf*zzmcher after the collision. (See Fig. 7-1.) What is the direction of motion of the cars after collision?

  Two objects move on a level frictionless surface. O 2yzn42tax7no8/z8 s ack uvp/k. e6cybject A moves east with a momentum of 24 kgm/s. Object B moves north with momentum 10 kgm/s. They make a perfectly inelastic collision. What is the magnitude of their combined momentum afte6k zx/na.etscpckyzna28 y ov 4u8/7 2r the collision?

  A small bomb, of mass 10 kg, is moving toward the North with a*+hy x ur.fyx1u)aia: velocity of 4.0 m/s. It explodes into three fragments: a 5.0-kg fragment moving west with a speed of 8.0 m/s; a 4.0-kg fragment moving east with a speed of 10 m/s; and a third fragment x xay. a iu1h:uyf+r*)with a mass of 1.0 kg. What is the velocity of the third fragment? (Neglect air friction.)

  A 4.00-kg mass sits at the oy*4c t5cw u:xyrigin, and a 10.0-kg mass sits at x = + 21.0 m. Where is the center of4yc:*ucw5t y x mass on the x-axis?

  The center of mass of a two-particle system is at the origin. One x09lkx4ik4 o vx8*lsfparticle is locatxvo8*4 l9sk4k0xx lfied at (3.0 m, 0) and has a mass of 2.0 kg. What is the location of the second mass of 3.0 kg?

  Three masses are positioned as follows: 2.0 kg at (0, 0), 2.0 kkq .mv)z8xa9pg at (2.0, 0), and 4.0 kg at (2.0, 1.0). Determi vmax kqz.)8p9ne the coordinates of the center of mass.

  Three masses, 1.0 kg, 2.0 kg, and 3.0 kg, are located at lzz4u0f/e( xdfzex,/ t:p(cy (0, 0), (1.0 m, 1.0 m), and (2.0 m, -2.0 m), respectively. What is the location of the ceyefx0,u/dlf (c:( p z4 exzt/znter of mass of the system?

  A 3.0-kg mass is positionslij e- d)xa(1asiq 47ed at (0, 8.0), and a 1.0-kg mass is positioned at (12, 0). What are the coordinates of a 4.0-kg mass which will result in the center of mass of the system of threisleaj- qx4(s 7 )a1ide masses being located at the origin, (0, 0)?

  Use Table 7-1 to calculate the position of the CM of a whole ley9yqdsk tm c8:p*w7k452u e dykjio,7g including the foot when the leg is strw24kd o:p7ku7y miy*dyqj s58t 9e, cketched straight out. Assume the person is 1.60 m tall.